Ext.onReady(function(){
	
	Ext.get("mb1").on("click",function(e){
		Ext.MessageBox.confirm("Confirm","Are you sure you want to that?");
	});
	
	new Ext.Resizable("basic",{
		width:200,
		height:100,
		minWidth:100,
		minHeight:50
	});
});